Omid Estaji's questions

After installing Modoboa(Open Source Mail Hosting), I Tried to start clamav-daemon, but i faced start condition failed.

    systemctl status clamav-daemon.service
    clamav-daemon.service - Clam AntiVirus userspace daemon
   Loaded: loaded (/lib/systemd/system/clamav-daemon.service; enabled; vendor preset: enabled)
  Drop-In: /etc/systemd/system/clamav-daemon.service.d
           └─extend.conf
   Active: inactive (dead)
Condition: start condition failed at Fri 2021-01-15 04:19:06 EST; 33min ago
           └─ ConditionPathExistsGlob=/var/lib/clamav/daily.{c[vl]d,inc} was not met

Below it showed the problem, conditionPathExistsGlob=/var/lib/clamav/daily.{c[vl]d,inc} was not met. I couldn't start the service with systemctl or other commands. After some troubleshoots, I found out that /var/lib/clamav is empty and there should be some .cvd update file. Also I couldn't update the clamav with this command (show me 403 error):

sudo clamav-freshclam

what can I do now?

We have a Mikrotik RB 750GL and I can't connect to it via Winbox or Http.

There is a PPTP connection (Running) between us (On Internet), That RB is PPTP Client.

Winbox stops on retrieving preferences and then disconnect. and Http webpage doesn't load. But I can connect to it via SSH or Telnet remotely and ping it!

and a local client can connect via Winbox or Http.

also I can't conncet to DVR (which connected to that RB).

None of these solutions work for me:

-Frameware Upgrade
-RouterOS Update
-Try L2TP Conncection
-Change MTU
-Change MRRU
-Another Winbox Version
-disable all Firewall Rules
-RB Client Reset Configuration(!)
-secure mode Winbox
-IP>Services: port and address

I need your help